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router1differentareasauthentication [2009/09/13 14:37] (current)
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 +===With the ''show version'' command the IOS version information and router information are shown===
 +
 +[[https://m1k3.kicks-ass.org/isis_wiki/doku.php?id=router1|The same output as router 1 in the lesson "ISIS point to point configuration with two routers in the same area". ]]
 +
 +===With the ''show controllers serial 0/0'' command you can find out if the router is DTE or DCE:===
 +
 +[[https://m1k3.kicks-ass.org/isis_wiki/doku.php?id=router1|The same output as router 1 in the lesson "ISIS point to point configuration with two routers in the same area". ]]
 +
 +===With the ''show running-config''command you can display your current router configuration:===
 +
 +[[https://m1k3.kicks-ass.org/isis_wiki/doku.php?id=router1|The same output as router 1 in the lesson "ISIS point to point configuration with two routers in the same area". ]]
 +
 +== ????????????????????????????????? ==
 +
 +<code>
 +RT1(config)#interface ser
 +RT1(config)#interface serial 0/0
 +RT1(config-if)#isis pass
 +RT1(config-if)#isis password isis level-2
 +RT1(config-if)#^Z
 +</code>
 +
 +===show & debugging commands:===
 +
 +==debugging without configured authentication on RT2:???????????????????????????????????==
 +
 +<code>
 +RT1#debug isis adj-packets
 +IS-IS Adjacency related packets debugging is on
 +01:59:26: ISIS-Adj: Sending L1 LAN IIH on Loopback0, length 1514
 +01:59:28: ISIS-Adj: Sending L2 LAN IIH on Loopback0, length 1514
 +01:59:33: ISIS-Adj: Sending serial IIH on Serial0/0, length 1499
 +01:59:33: ISIS-Adj: Rec serial IIH from *PPP* (Serial0/0), cir type L1L2, cir id
 + 00, length 1499
 +01:59:33: ISIS-Adj: Authentication failed
 +</code>
 +
 +== With the ''show clns neighbors'' command you can verify the adjacencies you have. In this output you can see that router RT2 is a neighbor to router RT1 ==
 +
 +<code>
 +RT1#sh clns neighbors
 +
 +System Id      Interface  SNPA                State  Holdtime  Type Protocol
 +RT2            Se0/0      *PPP*              Up    283      IS  ES-IS
 +</code>
 +
 +
 +== on RT2 the state is INIT:?????????????????????????????????????? ==
 +
 +<code>
 +RT2#sh clns neighbors
 +
 +System Id      Interface  SNPA                State  Holdtime  Type Protocol
 +RT1            Se0/0      *PPP*              Init  23        L2  IS-IS
 +</code>
 +
 +
 +
 +==debugging with configured authentication on RT2:??????????????????????????????==
 +
 +<code>
 +02:13:52: ISIS-Adj: Sending L2 LAN IIH on Loopback0, length 1514
 +02:13:58: ISIS-Adj: Sending serial IIH on Serial0/0, length 1499
 +02:14:00: ISIS-Adj: Sending L1 LAN IIH on Loopback0, length 1514
 +02:14:00: ISIS-Adj: Rec serial IIH from *PPP* (Serial0/0), cir type L1L2, cir id
 + 00, length 1499
 +02:14:00: ISIS-Adj: rcvd state UP, old state UP, new state UP
 +02:14:00: ISIS-Adj: Action = ACCEPT
 +</code>
 +
 +
 +== ????????????????????????????????? ==
 +
 +<code>
 +RT1#sh clns neighbors
 +
 +System Id      Interface  SNPA                State  Holdtime  Type Protocol
 +RT2            Se0/0      *PPP*              Up    21        L2  IS-IS
 +</code>
 +__on RT2 the state is also UP:__ \\
 +
 +
 +== ????????????????????????????????? ==
 +
 +<code>
 +RT2#sh clns neighbors
 +
 +System Id      Interface  SNPA                State  Holdtime  Type Protocol
 +RT1            Se0/0      *PPP*              Up    27        L2  IS-IS
 +</code>
 +
 
router1differentareasauthentication.txt · Last modified: 2009/09/13 14:37 (external edit)
 
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